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Question: A roller coaster car starts from rest at the top of a hill of height h. The car rolls without friction down the hill under the influence of gravity, and then performs a loop-the-loop on a circular loop of track of radius R.
Part A: What is the minimum height h that the roller coaster has to start at in order to stay on the track?
I need help to find the minimum height h that the roller coaster has to start at in order to stay on the track.
A dentist uses a mirror to examine a tooth that is 0.75 cm in front of the mirror. The image of the tooth is formed 8.0 cm behind the mirror. Decide the mirror's radius of curvature. Decide the magnification of the image.
Five thousand joules of heat is put into a Carnot engine whose hot and cold reservoirs have temperatures of 600 and 200 K, respectively. How much heat is convertedd into work?
Two stars are 4.2 x 1011 meter apart and are equally distant from the earth. Obtain maximum distance that these stars could be from earth
A 40.0 N crate starting at rest slides down a rough 6.0 m long ramp, inclined at 30 degrees with the horizontal. The force of friction between crate and ramp is 6.0 N. What will be the speed of the crate at the bottom of the incline?
In a friendly game of handball, you hit the ball essentially at ground level, How high is the ball when it hits the wall
0.700-kg ball traveling horizontally on a frictionless surface approaches a very massive stone at 20.0 m/s perpendicular to wall, What is the magnitude of the change in momentum of the stone
The space shuttle typically orbits 400 kilometers above the earth's surface. The earth has a mass of 5.98 × 1024 kilogram and a radius of 6,380 kilometer. Find the acceleration due to gravity at that altitude
After the first spring compresses a distance of 32.1 cm, the second spring acts with the first to increase the force as additional compression occurs. The car comes to rest 47.0 cm after first contacting the two-spring system. Find the car's initi..
A proton is released at the origin in a constant electric field of 850 N/C acting in the positive x-direction. Discover the change in the electric potential energy associated by the proton after it travels to x = 2.5 m.
Three concentric, thin, long conducting cylindrical shells have radii of 3.00 mm, 5.00 mm, and 6.00 mm, Find the capacitance per unit length of this configuration
two small charges with a mass of 1 gram each are connected by 2 cm long insulating rod of negligible mass. Obtain the moment of inertia around the center of mass
7.5 mol of helium are in a 18 L cylinder. The pressure gauge on the cylinder reads 67psi, What are the temperature of the gas in Celsius and the average kinetic energy of a helium atom
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